Nut-lock



lhtrrhn STATES PATENT NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 378,618, dated February 28, 1888.

' Application filed December 6, 1886. Serial No. 220,843. (No model.)

To (tZZ whom it may concern-.-

Be it known that we, FRANK RENNIE and JOHN RENNIE, both of Dayton, in the county of Montgomery and State of Ohio, have invented a new and Improved Nut-Lock, of which the following is a specification, reference being had to the annexeddrawings, forming a part thereof, in which Figure l is a side elevation of a part of a railroadrail, showing the application of our improved nut-lock. Fig. 2 is a plan view of the same, and Fig. 3 is a detail perspective View of the lock.

Similar letters of reference indicate corresponding parts in all the views.

The object of our invention is to provide a simple, efficient, and inexpensive nut-lock for application to railroad-rails and for other uses.

Our invention consists in the construction and arrangement of parts, as will be hereinafter fully described and claimed.

In making our improved nutdock we take a rod, A, of iron or steel, and bend it into a circular loop, B, of sufficient internal diameter to receive the bolt in connection with which it is used. The ends of the rod are bent outward in the same plane, so that they are approximately tangential to the circle of the loop. One end of the rod extends some distance away from the loop and is bent over toward the loo'p or returned upon itself, form ing the arm G.

Our improved nut-lock is applied to the bolt D,employed for fastening the angled fish-plates of rails, by placing the loop B on the bolt D, with the straight part of the rod resting upon the foot of the angled fish-plate. The nut E of the bolt is turned down upon the loop B, bindingit tightly against the angled fish-plate and drawing the angled fish-plates and the rail together. \Vhen the nut E has thus been carried to its place, a chisel or wedge is driven behind the arm 0, throwing it outward into the path of the corners of the nut E; or a tool especially designed for the purpose may be employed for bending the'arm O outward.

1th the arm C in this position it will be im-' one of said ends being bent over upon itself toward the loop and forming the nut locking arm 0, adapted to be bent out of the plane of the loop, substantially as set forth.

2. The combination, with the fish-plate, the bolt, and nut, ofthe loop B upon the bolt behind the nut and serving as a washer therefor, as shown, and arms at opposite sides of the lower part of the loop resting on. the flange of the fish-plate to hold the lock in position, one of said arms being bent over upon itself, as shown, to form the locking-arm O, the end of which rests against the edgeof the not out of the plane of the loop, substantially asset forth.

FR ANK BEN N IE. JOHN RENNIE. 

